{
  "threat_severity" : "Low",
  "public_date" : "2025-10-04T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: octeontx2-pf: mcs: Fix NULL pointer dereferences",
    "id" : "2401509",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2401509"
  },
  "cvss3" : {
    "cvss3_base_score" : "4.7",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-476",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nocteontx2-pf: mcs: Fix NULL pointer dereferences\nWhen system is rebooted after creating macsec interface\nbelow NULL pointer dereference crashes occurred. This\npatch fixes those crashes by using correct order of teardown\n[ 3324.406942] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[ 3324.415726] Mem abort info:\n[ 3324.418510]   ESR = 0x96000006\n[ 3324.421557]   EC = 0x25: DABT (current EL), IL = 32 bits\n[ 3324.426865]   SET = 0, FnV = 0\n[ 3324.429913]   EA = 0, S1PTW = 0\n[ 3324.433047] Data abort info:\n[ 3324.435921]   ISV = 0, ISS = 0x00000006\n[ 3324.439748]   CM = 0, WnR = 0\n....\n[ 3324.575915] Call trace:\n[ 3324.578353]  cn10k_mdo_del_secy+0x24/0x180\n[ 3324.582440]  macsec_common_dellink+0xec/0x120\n[ 3324.586788]  macsec_notify+0x17c/0x1c0\n[ 3324.590529]  raw_notifier_call_chain+0x50/0x70\n[ 3324.594965]  call_netdevice_notifiers_info+0x34/0x7c\n[ 3324.599921]  rollback_registered_many+0x354/0x5bc\n[ 3324.604616]  unregister_netdevice_queue+0x88/0x10c\n[ 3324.609399]  unregister_netdev+0x20/0x30\n[ 3324.613313]  otx2_remove+0x8c/0x310\n[ 3324.616794]  pci_device_shutdown+0x30/0x70\n[ 3324.620882]  device_shutdown+0x11c/0x204\n[  966.664930] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[  966.673712] Mem abort info:\n[  966.676497]   ESR = 0x96000006\n[  966.679543]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  966.684848]   SET = 0, FnV = 0\n[  966.687895]   EA = 0, S1PTW = 0\n[  966.691028] Data abort info:\n[  966.693900]   ISV = 0, ISS = 0x00000006\n[  966.697729]   CM = 0, WnR = 0\n[  966.833467] Call trace:\n[  966.835904]  cn10k_mdo_stop+0x20/0xa0\n[  966.839557]  macsec_dev_stop+0xe8/0x11c\n[  966.843384]  __dev_close_many+0xbc/0x140\n[  966.847298]  dev_close_many+0x84/0x120\n[  966.851039]  rollback_registered_many+0x114/0x5bc\n[  966.855735]  unregister_netdevice_many.part.0+0x14/0xa0\n[  966.860952]  unregister_netdevice_many+0x18/0x24\n[  966.865560]  macsec_notify+0x1ac/0x1c0\n[  966.869303]  raw_notifier_call_chain+0x50/0x70\n[  966.873738]  call_netdevice_notifiers_info+0x34/0x7c\n[  966.878694]  rollback_registered_many+0x354/0x5bc\n[  966.883390]  unregister_netdevice_queue+0x88/0x10c\n[  966.888173]  unregister_netdev+0x20/0x30\n[  966.892090]  otx2_remove+0x8c/0x310\n[  966.895571]  pci_device_shutdown+0x30/0x70\n[  966.899660]  device_shutdown+0x11c/0x204\n[  966.903574]  __do_sys_reboot+0x208/0x290\n[  966.907487]  __arm64_sys_reboot+0x20/0x30\n[  966.911489]  el0_svc_handler+0x80/0x1c0\n[  966.915316]  el0_svc+0x8/0x180\n[  966.918362] Code: f9400000 f9400a64 91220014 f94b3403 (f9400060)\n[  966.924448] ---[ end trace 341778e799c3d8d7 ]---" ],
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2025-05-13T00:00:00Z",
    "advisory" : "RHSA-2025:6966",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-570.12.1.el9_6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2025-05-13T00:00:00Z",
    "advisory" : "RHSA-2025:6966",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-570.12.1.el9_6"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Fix deferred",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2023-53595\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53595\nhttps://lore.kernel.org/linux-cve-announce/2025100428-CVE-2023-53595-91fb@gregkh/T" ],
  "name" : "CVE-2023-53595",
  "csaw" : false
}